Improvement in nursery-lamps



UNITED STATES PATENT OFFICE.

CLARK I. GOREIAM AND EDWIN. J. CUBLEY, OF CHICAGO, ILLINOIS, SAID oUBLEY AssIGNoIi To sAID GORHAM.

IMPRCVEMEINI IN NURSERY-LAMPS.

Specification forming part of Letters Patent No. 165,444., dated July 13, 1875; application filed June 4, 1875.

To all whom it muy concer-n.:

Be it known that we, CLARK -Ie GORHAM and EDWIN J. CUBLEY, of Chicago, Cook county, State of Illinois, have invented new and useful Improvements in N ursery-Lamps, of which the following is a full description, reference being had to the accompanying drawings, in which- Figurel l is an elevation 5 Fig. 2, a top view ofthe head of the pin Fig. 3, a vertical section, showing the parts of the lamp proper separated, and the cotton and asbestus removed. Fig. 4 shows the adjusting-cap.

The objects of this invention are to make the standard which support-s the lamp andthe vessel to be heated so that its leaves will not be liable to bedisplaced by accident or ordi- Ilary handling; to improve the interior of the lamp, so as to economize the burning-duid and protect the cot-ton from being overheated, and to provide a means of reducing and adjusting the flame, which we accomplish by connecting the leaves by means of a movable pintle, having a large head provided with slits, into which the leaves can pass when the standard is in use, by using metal plates within the lamp, and by a perforated cap, with a device for closing a portion of the holes, as hereinafter fully described.

In the drawiugga a a represent the leaves which form the standard, forming a support for a lamp at b, and for a vessel to be heated at c. They are hinged together, so as to be folded together when not in use. d. is the pintle passing through the parts f-on the leaves. It is provided with a large head, e, in

which there are three slits, s, equidistant from each other, into which the leaves pass when in use, the pintle being pushed down, thus forming a lock which will prevent the displacement of the leaves by ordinary usage. The pintle is somewhat longer than the other parts of the hinge, so that it can be moved up and down, in order to engage the head with, or disengage it from, the leaves a. These leaves can conveniently be made from sheet metal.

rIhe lamp proper is of the usual forni, and alcohol, or other iiuid which vaporizes readily, will be used in it.

We use cotton and asbestusin thelamp, as has been heretofore done; but we provide a piece of metal between the asbestus and cotton, to protect the latter from the heat, also a plate of metal above the asbestus to spread the dame.

In Fig. 3 we have shown the various parts separated one from another, and the cotton and asbestus removed.

g represents the bottoni of the lamp; h, a perforated plate of zinc, between which plate and the. bottom g is placed cotton to absorb theiiuid. Upon and above this platehisplaced a layer of asbestus. Upon the asbestus is a small disk of metal, c', to spread the vapor and force it to pass to the outside of this plate. j is wire-gauze in common use in such lamps. lc is the body of the lamp, and m a cover to be applied when the lamp is not in use.

Heretofore lamps of this class have not been provided with any way to regulate the flame,

dame. This cap must snugly fit its place, so i that vapor will not escape about the edges thereof'.

Such acap will answer for ordinary purf poses; but it' it is desired more perfectly to control the flow of vapor, we provide the cap with a plate so constructed and arranged that it can be used to adjust the openings in the cap, closing them entirely, if desired.

bnch a device is shown in Fig. et, n being a perforated cap or disk, provided with another revolving or movable disk, r, which is so perforated that all or only a portion of the holes in a can be opened.

Whatwe claim as new, and desire to secure by Letters Patent, is as follows:

1. The pintle r1, having a head, e, provided with slits s, in combination with the leaves a., substantially as and for the purposes specified.

2. In combination with a nursery-lamp, 4the plate h, located between the cotton and as-.' bestus, and the disk z' above the layer of asbestus, all substantially as and for the purpose set forth.

CLARK I. GCRHAM. EDWIN J. CUBLEY.

Witnesses E. A. WEsT, C. W. BOND.. 

